Top new questions this week:
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Below I generate a list of numbers between 1 and 15. I then set the value at position 10 to Nothing and as expected the value at position 10 is changed. This is as …
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Edit Greg Hurst answers show how to independently get 3x speed-up using single-threaded MKL implementation and 4x speed-up by using native implementation with multi-threading, can they be combined? …
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Mathematica is behaving very slow, but it is not like I could compare, as the speed has always been like this. The following ran in 58.64 seconds. Is this normal? How can I speed it up? …
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So I questioned why there are differences between Wolfram Cloud and Windows 11 Evaluate $\int_{0}^{\pi/2} \cos^a (x)\sin(ax) dx$ using Mathematica …
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Does Eigensystem[] produce incorrect output for symmetric matrices with integer components? The following eigensystem decomposition of a 12×12 matrix and its …
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Is there some built-in I can reuse to get a “stacked” number line plot? In other words, equivalent to NumberLinePlot, but some numbers occur more than …
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I have a set of data (called MyList), and I need to extract every value that appears after a certain marker (in this case …
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Greatest hits from previous weeks:
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When importing a data file what are the comment symbols for Mathematica? That is, given a file like this blabla bulbul 1 2 6 54 7 … .. what symbol do I have …
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I’m trying to plot a phase portrait for the differential equation $$x” – (1 – x^2) x’ + x = 0.5 \cos(1.1 t)\,.$$ The primes are derivatives with respect to $t$. I’ve reduced this second order ODE to …
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Here is a simple building floor plan. I would like to derive the rooms as (rectangular) components and the names of the rooms. This is very common representation of building floor plans. The problem …
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At the moment I am trying to construct a bifurcation diagram of the iterative function $f(x)=$ $ax-1.1975x^3$. I’ve scoured the internet for pre-made bifurcation diagrams and found many (mostly of the …
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I’m aware that I can use (* … *) to comment out stuff in a notebook. Many languages have a syntax for single-line comments, such as …
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I would like to plot those two datasets on top of each other. But they have very different range on the $y$ axis. How can I have two different axis? I found the following on the help menu but quite …
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testData = Table[N@Sin[500 x], {x, 0, 100}]; ListLinePlot[Abs[Fourier[testData]], PlotRange -> Full] Gives me Which I do not expect because the Fourier …
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Can you answer these questions?
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Continuing with my previous question, I want to reproduce the resluts in the article Emergence of a Turbulent Cascade in a Quantum Gas. Specifically, $n(k)$ in figure 3 or extended Data Figure 2 is …
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I have an interesting problem to solve. I want to have Text in a Graphics3D. This can easily be done in the following way: …
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Just for fun. An algorithm implementation problem in Mathematica. This question came up when I was chatting with my friend. To obtain the line graph of a graph is easy, but what about the reverse? …
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